...strategy of smearing the Catalan police force, the @mossos, after
successfully dismantling the yihadist terrorist group. All the Spanish
press claims, following @elperiodico's lead, that the @mossos failed to
heed a CIA May terrorist threat warning. Even @JulianAssange has laughed
off a reproduced US warning (not from the CIA) as a manipulation. This
warning was shared with the Spanish police (who later said they had no
specific warning beforehand) and both agreed it had zero credibility.
All this is irrelevant, for the terrorists, after losing their leader in
the accidental explosion in #Alcanar, had improvised a B plan. But all
the Madrid press has followed @elperiodico's lead in smearing the
Catalan police, as if the attacks could have been prevented. The Catalan
police have complained bitterly about Spain denying them access to
#Europol, retaining information and blocking recruitment.

Another one, which talks about a "nube tóxica" - a toxic cloud - was published on September 1: Nube tóxica tras la "exclusiva" de El Periódico, by Rosa María Arta. ("Toxic cloud after the El Periódico 'scoop'"). The news is that a newspaper presents a falsified document,
without stating this, to call into doubt the Catalan police. It says
they received information about the La Rambla attack, suggesting that
they ignored it. What is enormously relevant is that the media make the
content of what has been published newsworthy. It is not something that
easily happens with exclusive scoops from other media. What is clamorous is that there has not been a massive reaction by journalism to
facts of such gravity, except for the FAPE that supports El Periódico
and considers the "attacks" suffered as "intolerable"... http://www.eldiario.es/zonacritica/Nube-toxica-exclusiva-Periodico_6_682141788.html

There are those have have "speculated" (in the author's words), since September 2016, that a terrorist attack in Catalonia would justify an armed intervention to stop the independence process in its tracks.The claim that this might have been a false flag attack is very severe. The articles are very well documented.